Distance between Incheon, South Korea and Frederickson, Washington, USA
8391 km = 5214 miles
We assume a spherical Earth as a close approximation of the true shape of the Earth (an oblate spheroid). The distance is calculated as great-circle or orthodromic distance between city centres on the surface of a sphere.
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Incheon, South Korea
Country: South KoreaIncheon’s coordinates: 37°27′23″ N, 126°42′18″ E
Population: 2,628,000
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Wikipedia article: Incheon
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Frederickson, USA
Country: USAState: Washington
Frederickson’s coordinates: 47°05′46″ N, 122°21′31″ W
Population: 18,719
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Wikipedia article: Frederickson
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